public async Task <HttpWebResponse> GetDownloadResponseAsync([NotNull] string driveId, [NotNull] string itemId, long?from, CancellationToken cancellationToken)
{
var downloadUrl = GetDownloadUrl(driveId, itemId);
var request = await _restClientFactory.CreateWebRequest(new Uri(downloadUrl));
if (from != null)
{
if (_addRangeMethod != null)
{
_addRangeMethod.Invoke(request, new object[] { from.Value });
}
else
{
var range = new HttpRange("bytes", new HttpRangeItem(from, null));
request.Headers[HttpRequestHeader.Range] = range.ToString();
}
}
var response = (HttpWebResponse)await Task.Factory.FromAsync <WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
return(response);
}
public async Task <Item> UploadFileAsync([NotNull] string driveId, [NotNull] string parentId, [NotNull] string name, [NotNull] Stream input, CancellationToken cancellationToken)
{
// Create upload session
var request = CreateRequest($"drives/{driveId}/items/{parentId}:/{name}:/upload.createSession");
request.AddBody(
new
{
Item = new Item
{
Name = name,
ConflictBehavior = ConflictBehavior.Replace,
},
});
var deserializer = new JsonDeserializer();
var response = await _restClient.Execute <UploadSession>(request, cancellationToken);
var uploadSession = response.Data;
var inputLength = input.Length;
var sessionUri = uploadSession.UploadUrl;
// Upload the data
using (var uploadClient = CreateClient())
{
uploadClient.IgnoreResponseStatusCode = true;
int blockSize = 262144; // Info from Google PUT error message
var buffer = new byte[blockSize];
byte[] temp = null;
// As long as we have an upload session, upload the data...
while (uploadSession != null)
{
IRestResponse fragmentUploadResponse = null;
// Upload all data requested by the given ranges
var ranges = uploadSession.ToHttpRange();
foreach (var range in ranges.Normalize(input.Length))
{
// Split the data to upload into blocks (to keep memory usage small)
int size;
var length = range.Length;
for (long i = 0; i != length; i += size)
{
size = (int)Math.Min(range.Length, blockSize);
var readSize = input.Read(buffer, 0, size);
if (readSize == 0)
{
throw new InvalidOperationException($"Failed to read {size} bytes from position {i}");
}
size = readSize;
var requestRange = new HttpRange("bytes", new HttpRangeItem(range.From + i, range.From + i + size - 1));
if (temp == null || temp.Length != size)
{
temp = new byte[size];
}
Array.Copy(buffer, temp, size);
var requestUploadChunk = CreateRequest(sessionUri, Method.PUT);
requestUploadChunk.AddHeader("Content-Range", requestRange.ToString(requestRange.RangeItems.Single(), inputLength));
requestUploadChunk.AddParameter(string.Empty, temp, ParameterType.RequestBody, "application/octet-stream");
fragmentUploadResponse = await uploadClient.Execute(requestUploadChunk, cancellationToken);
if (!fragmentUploadResponse.IsSuccess)
{
throw new WebException(fragmentUploadResponse.StatusDescription, WebExceptionStatus.UnknownError);
}
}
}
if (fragmentUploadResponse != null)
{
// Deserialize the data into a JObject
var data = deserializer.Deserialize <JObject>(fragmentUploadResponse);
if (data.Property("id") == null)
{
// Convert to a new UploadSession when we don't have the "id" property
uploadSession = data.ToObject <UploadSession>();
}
else
{
// Otherwise return the data (which means: we just uploaded the last chunk)
var item = data.ToObject <Item>();
return(item);
}
}
else
{
// should never happen...
uploadSession = null;
}
}
}
// We didn't receive an "Item" object in the last upload chunk: Just query it
// from the server ourselves.
var result = await GetChildItemAsync(driveId, parentId, name, cancellationToken);
if (result == null)
{
throw new InvalidOperationException();
}
return(result);
}
public async Task<Item> UploadFileAsync([NotNull] string driveId, [NotNull] string parentId, [NotNull] string name, [NotNull] Stream input, CancellationToken cancellationToken)
{
// Create upload session
var request = CreateRequest($"drives/{driveId}/items/{parentId}:/{name}:/upload.createSession");
request.AddBody(
new
{
Item = new Item
{
Name = name,
ConflictBehavior = ConflictBehavior.Replace,
},
});
var deserializer = new JsonDeserializer();
var response = await _restClient.Execute<UploadSession>(request, cancellationToken);
var uploadSession = response.Data;
var inputLength = input.Length;
var sessionUri = uploadSession.UploadUrl;
// Upload the data
using (var uploadClient = CreateClient())
{
uploadClient.IgnoreResponseStatusCode = true;
int blockSize = 262144; // Info from Google PUT error message
var buffer = new byte[blockSize];
byte[] temp = null;
// As long as we have an upload session, upload the data...
while (uploadSession != null)
{
IRestResponse fragmentUploadResponse = null;
// Upload all data requested by the given ranges
var ranges = uploadSession.ToHttpRange();
foreach (var range in ranges.Normalize(input.Length))
{
// Split the data to upload into blocks (to keep memory usage small)
int size;
var length = range.Length;
for (long i = 0; i != length; i += size)
{
size = (int)Math.Min(range.Length, blockSize);
var readSize = input.Read(buffer, 0, size);
if (readSize == 0)
throw new InvalidOperationException($"Failed to read {size} bytes from position {i}");
size = readSize;
var requestRange = new HttpRange("bytes", new HttpRangeItem(range.From + i, range.From + i + size - 1));
if (temp == null || temp.Length != size)
temp = new byte[size];
Array.Copy(buffer, temp, size);
var requestUploadChunk = CreateRequest(sessionUri, Method.PUT);
requestUploadChunk.AddHeader("Content-Range", requestRange.ToString(requestRange.RangeItems.Single(), inputLength));
requestUploadChunk.AddParameter(string.Empty, temp, ParameterType.RequestBody, "application/octet-stream");
fragmentUploadResponse = await uploadClient.Execute(requestUploadChunk, cancellationToken);
if (!fragmentUploadResponse.IsSuccess)
throw new WebException(fragmentUploadResponse.StatusDescription, WebExceptionStatus.UnknownError);
}
}
if (fragmentUploadResponse != null)
{
// Deserialize the data into a JObject
var data = deserializer.Deserialize<JObject>(fragmentUploadResponse);
if (data.Property("id") == null)
{
// Convert to a new UploadSession when we don't have the "id" property
uploadSession = data.ToObject<UploadSession>();
}
else
{
// Otherwise return the data (which means: we just uploaded the last chunk)
var item = data.ToObject<Item>();
return item;
}
}
else
{
// should never happen...
uploadSession = null;
}
}
}
// We didn't receive an "Item" object in the last upload chunk: Just query it
// from the server ourselves.
var result = await GetChildItemAsync(driveId, parentId, name, cancellationToken);
if (result == null)
throw new InvalidOperationException();
return result;
}
public async Task<HttpWebResponse> GetDownloadResponseAsync([NotNull] string driveId, [NotNull] string itemId, long? from, CancellationToken cancellationToken)
{
var downloadUrl = GetDownloadUrl(driveId, itemId);
var request = await _restClientFactory.CreateWebRequest(new Uri(downloadUrl));
if (from != null)
{
if (_addRangeMethod != null)
{
_addRangeMethod.Invoke(request, new object[] { from.Value });
}
else
{
var range = new HttpRange("bytes", new HttpRangeItem(from, null));
request.Headers[HttpRequestHeader.Range] = range.ToString();
}
}
var response = (HttpWebResponse)await Task.Factory.FromAsync<WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
return response;
}